Gui Djos wrote:
>   x_1 = Float((-1 * b + delta ** 1/2)/2 * a)
>

Note that "1/2" gives zero in Ruby. William Rutiser explained this and 
more ("**" preceed "/" anyway), but I want to make sure you don't miss 
this 1/2.

-- 
Posted via http://www.ruby-forum.com/.